ASTROSAT CZTI

Data Quality Report

Orbit 29419

Creation date: 2024-06-27T20:03:56.507132
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_102T11_9000004230_29419cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29419cztM0_level2_quad_clean.evt
Size (bytes)1,015,519,68074,957,760
Size968.5 MB 71.5 MB
Events in quadrant A3,402,196496,495
Events in quadrant B4,094,889500,597
Events in quadrant C12,624,230368,921
Events in quadrant D10,144,874396,893

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147361
B0167111
C0425851
D0352092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7254460.634133%
B72541482.040254%
C7255390153.769814%
D7254259335.745795%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7674 7256 0 0 0.00% 0.00%
B 7674 7256 56 56 0.73% 0.77%
C 7675 7256 3010 3010 39.22% 41.48%
D 7674 7256 1904 1904 24.81% 26.24%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 14056 73.52 880 859 179.5
A 3 137 8688 43.61 880 859 179.5
A 0 226 7421 36.56 880 859 179.5
B 10 245 567804 3435.94 869 847 165.0
B 15 33 34369 203.15 869 847 165.0
B 0 156 26419 154.97 869 847 165.0
C 3 233 9899148 63294.15 666 667 156.4
C 14 238 102566 651.58 666 667 156.4
C 2 114 14732 89.94 666 667 156.4
D 1 52 4917990 29366.27 700 680 167.4
D 7 80 834626 4980.34 700 680 167.4
D 13 153 652872 3894.9 700 680 167.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter